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ObjectiveTo look at the details of UDP (User Datagram Protocol). UDP is a transport protocol used throughout the Internet as an alternative to TCP when reliability is not required. It is covered in §6.4of your text. Review that section before doing thi..

ObjectiveTo see how ARP (Address Resolution Protocol) works.ARP is an essential glue protocol that is used to join Ethernet and IP.It is covered in §5.6.4 of your text.Review the text section before doing this lab.目的看看ARP（地址解析协议）是如何工作的。ARP是.

ObjectiveTo learn about the details of IP (Internet Protocol).IP is the network layer protocol used throughout the Internet.We will examine IP version 4, since it is ubiquitously deployed, while the IP version 6 is partly deployed.IP is covered in.

ObjectiveTo explore the details of Ethernet frames.Ethernet is a popular link layer protocol that is covered in §4.3 of your text;modern computers connect to Ethernet switches (§4.3.4) rather than use classic Ethernet (§4.3.2).Review section §4.3 .

ObjectiveTo learn how protocols and layering are represented in packets.They are key concepts for structuring networks that are covered in §1.3 and §1.4 of your text.Review those sections before doing the lab.学习如何在包中表示协议和分层。它们是构建网络的关键概念，请参见本文的§1.